Mind-Mapping:

Bubbl.us
http://bubbl.us/
Bubbl.us is a simple and free web application that lets you brainstorm online. Mind maps can be shared online for collaboration with colleagues.

Mind42
http://www.mind42.com/
Manage all your ideas, whether alone, twosome or working together with the whole world - collaborative, browser-based and for free.

Gliffy
http://www.gliffy.com/
Gliffy is an online diagramming service that helps users communicate with a combination of shapes, text, and lines.


Social Bookmarking:

Delicious
http://delicious.com/
Delicious is a Social Bookmarking service, which means you can save all your bookmarks online, share them with other people, and see what other people are bookmarking.

Diigo
http://www.diigo.com/
Diigo is a social bookmarking site that makes it easy to save, share, and explore favorite web pages.

Digg
http://digg.com/
Digg is a place for people to discover and share content from anywhere on the web. From the biggest online destinations to the most obscure blog, Digg surfaces the best stuff as voted on by our users. You won’t find editors at Digg — we’re here to provide a place where people can collectively determine the value of content and we’re changing the way people consume information online.

Clipmarks
http://clipmarks.com/
On Clipmarks.com, you can see clips of text, images or video about all sorts of topics that other people find while surfing the web. The idea is that through each other, we can learn more, know more and enjoy more than we could possibly do alone. As you find people who post clips that interest you, make them a Guide. Think of your Guides as a team of web editors you choose to consistently deliver you clips of things they find on the web.

Voicethread
http://voicethread.com/
A VoiceThread is a collaborative, multimedia slide show that holds images, documents, and videos and allows people to leave comments in 5 ways - using voice (with a mic or phone), text, audio file, or video (via a webcam). Share a VoiceThread with friends, students, and colleagues for them to record comments too.

Slideshare
http://www.slideshare.net/
SlideShare is the best way to share your presentations with the world. Let your ideas reach a broad audience. Share publicly or privately. Add audio to create a webinar.


Google Groups and Widgets & Apps


Google for Educators Discussion Group
http://groups.google.com/group/google-for-educators
Resource group for teachers including lesson plans and project information.

iGoogle
http://www.google.com/ig
Create a customized homepage for google which can include news updates and widgets.

Google Calendar
http://www.google.com/calendar/
Google Calendar is a good online calendar resource that allows sharing of information between groups. You can set up a personal calendar (private) as well as calendars for different classes, (making these public).

Google Docs
http://docs.google.com
Online documents that can be viewed and edited from any computer. Google Docs accepts most popular file formats, including DOC, XLS, ODT, ODS, RTF, CSV, PPT, etc. Multiple people can view and make changes at the same time. There's an on-screen chat window for spreadsheets, and document revisions show you exactly who changed what, and when. Viewing a presentation together is a breeze, as anyone joined in a presentation can automatically follow along with the presenter.

Google History
http://www.google.com/history
Google History shows your personal web history over the past week allowing for bookmarks and easy access to your history, it is interesting to view search trends. This only works if you are logged in as a google user.

Google Notebook
http://www.google.com/googlenotebook/tour1.html
Keep all your notes organized by creating multiple notebooks for different subjects or by dividing a single notebook into several sections. You can also easily rearrange your notes by dragging-and-dropping them from one section or notebook to another.

Google Applications - More Products page
http://www.google.com/intl/en/options/
Listing of the many applications possible from Google.


Other Resources:


Classroom 2.0
http://www.classroom20.com/
Classroom 2.0 is a social network for those interested in Web 2.0 and collaborative or transformative technologies in education.

Zoho
http://zoho.com/
Zoho is another organization that offers a group of online software, from Docs, spreadsheets, databases to presentations. These give another option to those working online who want to share their work with no cost for use on most elements.


Wiki Educator
http://www.wikieducator.org/Main_Page
The WikiEducator is an evolving community intended for the collaborative: planning of education projects linked with the development of free content; development of free content on Wikieducator for e-learning; work on building open education resources (OERs) on how to create OERs; networking on funding proposals developed as free content.